Barnes & Noble, Kroger, Pandora are big movers

NEW YORK (AP) -- Stocks that moved substantially or traded heavily Tuesday on the New York Stock Exchange and the Nasdaq Stock Market:

NYSE

Barnes & Noble Inc., up 95 cents at $18.61

The bookseller said that its CEO William Lynch was resigning after three years on the job. The company did not name a replacement.

Wolverine World Wide Inc., up $2.11 at $57.38

The footwear and clothing company's fiscal second-quarter net income fell 13 percent, but its adjusted results easily beat expectations.

The Kroger Co., up 96 cents at $37.15

The supermarket operator said that it has agreed to buy Harris Teeter Supermarkets Inc. for about $2.44 billion in cash.

Pandora Media Inc., down 87 cents at $19.65

The Internet radio company said that the number of hours people listened to its music in June rose from year-ago levels, but fell from May of this year.

Nasdaq

Hi-Tech Pharmacal Co. Inc., up $1.72 at $35.25

The Amityville, N.Y.-based generic and branded drugmaker reported a loss of $4.6 million in its fourth quarter as revenue fell.

Intuitive Surgical Inc., down $80.78 at $419.30

The maker of robotic surgery system forecast disappointing second-quarter sales saying that it was hurt by reduced hospital admissions.

Amarin Corp. PLC, down 59 cents at $5.58

The Irish drugmaker said that it plans to sell 21.7 million American Depositary Shares in an underwritten public offering.

Natus Medical Inc., down 62 cents at $11.78

Shares of the medical device maker for newborn care continued to fall a day after saying its second-quarter revenue missed expectations.